Which thing is made from water and clay?

All energy on the earth comes from ?

Water is supplied to the leaves by the ?

What is essential for human beings to live on earth ?

That cannot be seen, touched or tasted, what is that?

The ability of a body to do work is ?

An immense treasure that provides us with everything we need for our survival is ?

Who lives in the soil?

What attracts flies and germs?

A colour less thing in nature ?